JPH06200911A - Connecting metal fitting of cross pipe material - Google Patents

Abstract

PURPOSE:To carry out connection of each pipe member silently and with good efficiency by providing two member equipped with respective flat surface parts which are opposed to each other so as to be mounted on the cross part of two crossing pipe members, and forming respective insert-in part of each pipe member and mutually engaging for each pipe materal on respective members. CONSTITUTION:Two members 1, 2 are provided, and they are provided with respective flat surface part 11, 21 which are opposed to each other so as to be mounted on the cross part of two crossing pipe materials. In one side member 1, an opening recessed part 12 in which one pipe is fit is formed on the upper part of the flat surface part 11, and also a notch 13 in which the other pipe material is fit in and flange parts 14 are formed on an upper end surface side. On the other hand, in the other member 2, an opening recessed part 22 in which the other pipe material is fit in is formed on the flat surface part 21, and a tongue piece 23 engaged with the flange part 14 is formed on the upper end part. Both members 1, 2 are connected to each other on respective flat surface parts 11, 21 by screws 3. Sum of the depth sizes of respective opening recessed parts 11, 21 is set to be smaller than the sum of outer diameters of respective pipe materials.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal fitting for connecting two pipe members intersecting each other at a right angle, particularly in a hospital or various laboratories, and in a room for storage protection of containers and equipment. The present invention relates to a metal fitting for joining cross pipe materials suitable for a frame body or a shelf that is assembled and used.

[0002]

2. Description of the Related Art As a conventional representative example of a metal fitting for connecting two orthogonal pipe materials at their intersections, for example, Japanese Utility Model Laid-Open No. Sho 62-98810 or Japanese Utility Model Laid-Open No. Sho 63 is known.
-69803 can be mentioned.

The joining fitting (steel tube binding tool) described in Japanese Utility Model Laid-Open No. 62-98810 holds one steel rod for one pipe material and the other pipe material orthogonal to this. It is formed by bending a U-shaped curved part, and one free end of a steel rod is wound around the other free end and a screw part is provided at the other free end so that it can be fastened with a nut. There is. Since such a clamp metal fitting has a simple structure and is relatively inexpensive, it is widely used for connecting aggregates of greenhouses.

The fitting for connecting the crossing pipes described in Japanese Utility Model Laid-Open No. 63-69803 is formed by processing a metal plate, and is applied to the first member that receives one of the intersecting pipes and the other pipe. A second member, which is formed into a free end edge of both members, is engaged with the mooring hooks from the ends thereof, and the second member is driven into the mooring hook so as to be fixed and fixed in a wedge shape to connect the cross pipes. It is configured.

[0005]

However, although the clamp metal fitting formed of the above steel rod has the advantage of being simple, it is free from the outside of the crossed pipe material when connecting the crossed pipe materials. Since it cannot be mounted on the pipe material, the number of metal fittings corresponding to the number of intersections must be inserted in the pipe material at the intersections in advance, and the assembly work of the pipe material is complicated.

On the other hand, since the latter fitting for fitting can be attached to the intersection of the pipe members from the outside, there is no such inconvenience as described above, but in order to fasten and fix the intersection, the second member is applied from the side of the first member. Since the work of hammering is required, the generation of hammering impact noise is unavoidable, and it is extremely unsuitable for assembling a frame or a shelf used in a quiet place such as a hospital or various laboratories. In addition, the first member and the second member need to be manufactured with high precision corresponding to the outer diameter of the pipe material in order to connect them by driving, and the manufacturing accuracy is poor or there is a slight disparity in the outer diameter of the pipe material. And a firm conclusion cannot be achieved.

[0007] For the above-mentioned reasons, a clamp type fitting as described in Japanese Utility Model Laid-Open No. 63-173505 is used as a connecting fitting when assembling with a pipe material in a room such as a hospital or various research rooms. However, this type is not only expensive, but also has the disadvantage that the joints of the cross pipe material are extremely bulky and the articles to be handled often hit the clamps and cause damage.

The present invention has been made for the purpose of eliminating the disadvantages of the above-mentioned conventional fittings for joining cross pipe materials, and the pipe materials are quietly and efficiently cross-joined indoors so that a frame or a shelf is formed. The present invention provides a metal fitting for joining cross pipe materials that can be assembled.

[0009]

According to the present invention, a first member mounted on the side of one pipe member and a second member mounted on the side of the other pipe member can be fixedly engaged at one end with each other. And the other end is screw-joined, and the opposing flat portions of both members are held in a non-contact state at the screw-joint so that the tightening force of the screw effectively acts on the fastening of the cross pipe and the cross pipe material. The above problem was solved by making it possible to absorb the difference in the outer diameter of the.

That is, the fitting for joining crossed pipe materials of the present invention comprises a first member fitted to one of the intersecting pipe members and a second member fitted to the other pipe member, and both members are joined together. Is formed of a metal plate and has opposed flat portions, the first member has a U-shaped opening recess formed above the flat portion into which one pipe member can be fitted, and the second member has a central portion of the flat portion. Is formed with a U-shaped opening recess into which the other pipe member can be fitted, the plane portion is divided into left and right, and the upper surface of the opening recess of the first member extends toward the other pipe member that intersects with the other pipe member. A semi-circular cut into which the pipe material is fitted and a hook portion are formed, and the upper ends of the left and right flat portions of the second member are bent into an L shape to form a tongue piece that engages with the hook portion. The hook portion and the tongue piece are configured so that they can be fixedly engaged at one end portion respectively. A screw hole and a through hole for screw-connecting both members are provided below the flat surface portion of the material and the left and right flat surface portions of the second member, and the U-shaped portion of the first member from the flat surface portion of the first member is provided. The sum of the depth dimension of the opening recess and the depth dimension of the U-shaped opening recess of the second member from the plane portion of the second member is not smaller than the sum of the outer diameters of the two intersecting pipe members. It is characterized by that.

As the metal plate forming the metal fitting of the present invention,
From the viewpoint of corrosion resistance and aesthetics, a stainless steel plate having a thickness of 1 to 3 mm is optimal, and is particularly suitable for cross-joining pipe materials having an outer diameter of about 8 to 20 mm.

Also, a pair of flat parts of the first member and left and right flat parts of the second member are in contact with a part of the intersecting pipe material, preferably on both sides of the axial center position of the pipe material, at the time of attachment and connection. Providing the protrusions enables the cross pipe members to be more firmly joined together. The protrusion may be a simple wart-like shape, or may be a small tongue piece in which a flat surface portion is cut and raised on the inner surface.

[0013]

The first member and the second member are mounted from both sides of the cross pipe material, the tongue piece of the second member is engaged with the hook portion of the first member, and the two flat parts of the two members facing each other are screwed together. When tightened, both members pinch the intersecting portion of the pipe material from both sides of the engaging portion as a base point, so that the intersecting portion can be fastened very easily. Further, since the flat portions of both members do not come into contact with each other by tightening the screw, the tightening force of the screw acts on the cross pipe material as it is to firmly bond the cross pipe material and eliminate side shake.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The preferred embodiments of the present invention will be described below with reference to the drawings.
As shown in FIG. 5, one of the intersecting pipe materials (A)
The first member (1) mounted on the side, the second member (2) mounted on the other pipe member (B) side, and two screws (2) for connecting both members (1) and (2) It consists of 3) and (3). Both members (1) and (2) are formed of a metal plate and have flat surface portions (11) and (21) that face each other when mounted.

The first member (1) is formed with a U-shaped opening concave portion (12) above the flat surface portion (11) into which one pipe material can be fitted, and the upper surfaces of the opening concave portions (12) intersect. The other pipe material
Semicircular notch (13) that extends toward (B) and the other pipe material (B) fits in, and hook part (14) with a bent free edge
Is formed, and screw holes (15) and (15) into which the screws (3) and (3) are screwed are provided on both sides of the flat surface portion (11).

The second member is formed with a U-shaped opening concave portion (22) into which the other pipe material (B) can be fitted at the center of the flat surface portion (21), and the flat surface portion (21) is divided into left and right halves. This is the left and right flat parts
The upper end of (21) is bent into an L shape, and the hook portion (1
A tongue piece (23) that engages with (4) is formed so that both members (1) and (2) can be fixedly engaged at one end by the hook portion (14) and the tongue piece (23). , Below the flat part (21) both members
Through holes (24) and (24) for screw-connecting (1) and (2) are provided.

Then, as shown in FIGS. 2 and 3, from the flat surface portion (11) of the first member (1) to the above U of the first member (2).
The depth dimension (E1) of the U-shaped opening concave portion (12) and the plane portion (21) of the second member (2) to the U-shaped opening concave portion (22) of the second member (2).
The sum of the depth dimension (E2) of the two intersects the two pipe materials (A)
The outer diameter of (B) is set smaller than the sum of (D1) and (D2).
(1) (2) In the use state in which the cross pipe materials (A) and (B) are joined together, as shown in FIGS. 4 and 5, the flat surfaces of both members (1) and (2) facing each other. The parts (11) and (21) are not in contact with each other, and a gap (S) is formed between the flat parts (11) and (21).

Further, as shown in FIG. 6, the cross pipes (A), () are attached to the flat surface portion (11) of the first member (1) and the left and right flat surface portions (21) of the second member (2) at the time of attachment and connection. If a protrusion (16) (25) is provided on a part of (B), which preferably abuts on both sides of a position point slightly displaced from the axial center position of the cross pipe material (A) (B), both pipe materials are provided.
(A) and (B) are pinched and held by these protrusions (16) and (25) in a pointwise manner to eliminate side shake and improve the coupling force and to prevent the pipe materials (A) and (B) from rotating. Be useful.

Next, an explanation will be given of the procedure for connecting the cross pipe materials (A) and (B) by the above-described cross pipe connecting fittings of the present invention. First, one pipe material (A) in the horizontal direction and the other pipe material (A) in the vertical direction are connected. Cross the pipe material (B), and cross this pipe (A) (B)
The first member (1) and the second member (2) are inserted into the pipe members (A) and (B) from the both sides of the intersection of the first member (1) and the second member (2), respectively. The tongue piece (23) of the second member (2) is inserted into the hook portion (14) of (1) to engage both members (1) and (2) at one end thereof, and then the flat surface portions facing each other. Screw (11) (21)
(3) By tightening with (3), both pipe materials (A)
The intersection of (B) is joined. 4 and 5 show a front perspective view and a rear perspective view of the combined state. Then, as shown in FIG. 7, by carrying out such an operation at each intersection (10) (10) formed by a plurality of pipe materials cut into a predetermined length, a rectangular parallelepiped frame body or shelf of a desired size is obtained. A frame can be formed.

[0020]

As described above, the connecting fitting of the cross pipe material according to the present invention has the first member (1) mounted on the crossing pipe material (A) side and the other crossing pipe material (B) side. The first member (1) is composed of a second member (2) to be mounted, and both members (1) and (2) are provided with flat portions (11) and (21) formed of metal plates and facing each other.
A U-shaped opening concave portion (12) into which one pipe material (A) can be fitted is formed above the flat surface portion (11), and the second member (2) is located at the center of the flat surface portion (21) of the other. U where pipe material (B) can be inserted
A flat opening (21) is formed to the left and right by forming a letter-shaped opening recess (22).
And the other pipe member (B) extends toward the other pipe member (B) where the upper surface of the opening recess (11) of the first member (1) intersects.
A semi-circular notch (13) and a hook portion (14) are formed therein, and the upper ends of the left and right flat surface portions (21) of the second member (2) are bent into an L shape to form the hook portion (14). A tongue piece (23) which engages with each other is formed so that both members (1) and (2) can be fixedly engaged at their one ends by the hook portion (14) and the tongue piece (23). Screw holes (15) for screw-connecting both members (1) and (2) to the lower flat surface part (11) of the member (1) and the lower flat surface parts (21) of the second member (2). Therefore, the first member (1) and the second member (2) are provided from both sides of the intersection of the two pipe materials (A) and (B).
While fitting the two members (1) and (2), by engaging the hook portion (14) at one end of each member and the tongue piece (23), both members (1) and (2) can be attached to the intersection, By tightening both mounted members (1) and (2) with two screws (3) and (3) from one end, the intersection of pipe materials (A) and (B) can be efficiently and accurately and horizontally. It is possible to eliminate the blurring and to form and grasp the joint without any striking sound. Therefore, it is a good enemy for assembling shelves and frames used in hospitals and laboratories.

In addition, the depth dimension (E1) from the flat surface portion (11) of the first member (1) to the U-shaped opening concave portion (12) of the first member (1).
And the sum of the flat surface portion (21) of the second member (2) and the depth dimension (E2) of the U-shaped opening concave portion (22) of the second member (2) intersect (2A pipe material (A ) (B) is smaller than the sum of the outer diameters (D1) and (D2) of the first member (1), the tongue piece (23) of the second member (2) is attached to the hook portion (14) of the first member (1). ), And then opposite members (1) (2)
When the flat parts (11) (21) of the above are tightened with two screws (3) (3), both members (1) and (2) are pipe materials with the above engaging parts as the base points.
(A) (B) The intersection can be clamped from both sides to easily and accurately fasten the intersection, and even if there is some disparity in the outer diameter of the pipe material, it can be joined without any trouble. it can. And even after tightening the screw (3), both members (1)
Since the flat part (11) (21) of (2) does not contact and the gap (S) is maintained, the tightening force of the screw (3) acts on the cross pipe material as it is and the cross pipe material (A) (B) is firmly joined, and at the time of tightening and joining, the elasticity inherent to the metal plate works effectively to prevent loosening of the joining portion, thereby exerting an excellent effect.

[Brief description of drawings]

FIG. 1 is a perspective view of a coupling fitting in a separated state.

FIG. 2 is a side view showing an engaged state of a first member and a second member.

FIG. 3 is a plan view of FIG.

FIG. 4 is a front perspective view of a joined state of cross pipe members.

FIG. 5 is a rear perspective view of a joined state of the cross pipe members.

FIG. 6 is a side view showing another embodiment of the coupling fitting.

FIG. 7 is a perspective view showing a state of an intersecting portion of a pipe material.

[Explanation of symbols]

 1. First member 2. Second member 3. Screw 10. Intersection 11. Flat part of the first member 12. Opening recess 13. Semicircle notch 14． Hook part 15. Screw hole 21. Flat part of the second member 22. Opening recess 23. Tongue 24. Through hole D1. Outer diameter of one pipe material D2. Outer diameter of the other pipe material E1. Depth dimension of opening recess E2. Depth dimension of opening recess

Claims (2)

[Claims] 1. A flat member, which comprises a first member mounted on one of the intersecting pipe members and a second member mounted on the other pipe member, both members being formed of metal plates and facing each other. The first member is provided with a U-shaped opening concave portion into which the one pipe member can be fitted and which is formed above the plane portion of the first member.
The member is U where the other pipe material can be fitted in the center of its flat surface.
A letter-shaped opening concave part is formed and the flat part is divided into left and right,
A semi-circular notch and a hook are formed to extend to the other pipe material side where the upper surface of the opening concave portion of the first member intersects and the other pipe material is fitted, and the upper ends of the left and right flat surface portions of the second member are L. A tongue piece that is bent into a letter shape and that engages with the hook portion is formed, and both members are configured so that they can be fixedly engaged at one end portion by the hook portion and the tongue piece. A screw hole and a through hole for screw-connecting both members are provided below the left and right flat surfaces of the second member, and the depth of the U-shaped opening recess of the first member from the flat surface of the first member. The sum of the dimension and the depth dimension of the U-shaped opening recess of the second member from the plane portion of the second member is smaller than the sum of the outer diameters of the two intersecting pipe members. Metal fittings for connecting cross pipe materials. 2. The cross pipe material according to claim 1, wherein the flat portion of the first member and the left and right flat portions of the second member are provided with projections that come into contact with a part of the cross pipe during attachment and connection. Metal fittings for joining.